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In partnership with California Department of Transportation (Caltrans), Federal Highway Administration (FHWA), and with support from International Association of Foundation Drilling (ADSC), Deep Foundations Institute (DFI) organized a workshop on quality assurance (QA) practices for acceptance of post-grouted drilled shafts in conjunction with DFIs 40th Annual Conference on Deep Foundations. The one and a half day workshop was held on October 15-16, 2015 at the Oakland Marriott City Center in Oakland, CA.
Post-grouting, in the context of this workshop and report, refers to the alternative design and construction of base-grouted drilled shafts wherein a grout distribution system is installed during construction and used to grout the base under pressure after the drilled shaft concrete has gained adequate strength, resulting in a stiffer axial-compression load-displacement relationship and additional possible ground improvement effects.
The primary goals of the workshop were to
 Identify and summarize the state of the practice for design, construction, inspection, verification, acceptance criteria, reliability and performance of post-grouting.
 Identify gaps and needs in quality assurance that should be addressed for successful use of post-grouting.
This report is structured to follow the workshop program: workshop presentations outlined the state of practice and views from owners, engineers and contractors on acceptance of post grouting methods for drilled shafts; and subsequent workshop discussions attended by a small invited group of participants focused on identifying areas of agreement and disagreement on post-grouting best practices, acceptance criteria, design and verification procedures, and inspection requirements. A partial list of attendees of the open and closed sessions is provided as Appendix A, and copies of presentations are included as Appendix B.
FHWA and Caltrans are the primary audiences for this report, and its content will be used to develop a roadmap for deploying the findings into policy and practice. The secondary audience is the broader industry group, and the report content will be disseminated in a variety of formats.
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Establishing a suitable mix design is important to provide the engineering property values necessary for adequate performance of a deep mixing support system. The mix design process often includes a laboratory mixing program to identify suitable binder types and appropriate mixture proportions. The objectives of this research were to investigate: (1) the influences of laboratory procedures and test conditions on measured property values of cement-treated soil, (2) relationships between engineering property values, such as the relationship between unconfined compressive strength and Young's modulus, and (3) the influence of mix design proportions on cured strength and on mixture consistency immediately after mixing.

The theme selected for this conference covered piling and ground improvement works associated with building and infrastructure developments, including foundation works and retention requirements for basements to provide an all-inclusive interest within the geotechnical profession nationally and internationally. By introducing a broad range of topics the Committee hoped that all disciplines as practiced around the globe in building and infrastructure works would provide interesting, educational and thought-provoking opportunities. Topics include: innovation in design methods; selection and justification of design and installation parameters; novel solutions to construction problems; testing of foundations; case studies; retention solutions for basements; ground improvement methods; and equipment developments and performance.
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The International Society for Micropiles (ISM), Deep Foundations Institute (DFI) and The International Association for Foundation Drilling (ADSC) partnered to present the 13th Workshop on Micropiles on the theme of "Micropiles: Resisting and Remediating the Effects of Mother Nature". Technical papers and presentations were provided on this topic in the form of case histories as well as the use of micropiles as foundation support, innovative techniques and design and load testing information.
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Four manuscripts describe a comprehensive comparison study between drilled shaft/bored pile practice in Europe and North America (i.e., US and Canada) focusing on the design, construction, contracting, quality control and implementation of recent technologies into the deep foundation industry. The material was presented at conference sessions of the 2014 DFI Annual Conference on Deep Foundations in Atlanta, Georgia, and the 2015 International Foundations Congress and Equipment Expo (IFCEE) in San Antonio, Texas. The presentations, lessons learned and discussions that followed are documented. For the purpose of this study the project team members (i.e. authors of the subsequent papers) were paired by geographic location, i.e., US team members collaborated with European team members to provide a detailed synopsis of the respective study topic. Conclusions drawn from the study were supported by data from a comprehensive project survey conducted on both continents. Brown, Wulleman and Bottiau present a comparison of design practice and recognize that while common trends in the design of deep foundations exist, local practice dictates much of the implementation. In addition thereto, differences in construction techniques (e.g., drilling fluids, reinforcement details, base cleaning) have an impact on the early design stages before construction starts. Marinucci and Jue follow up by investigating differences in construction methodology and note that in Europe, bored pile practice typically follows performance-based methodology and specifications, whereas, in North America, traditional prescriptive-based methodology and specifications are more widely used. In addition differences with respect to casing, usage of drilling fluid and safety requirements dictate the deep foundation construction. Coleman and Tipter explore the contracting methods, document forms, payment methods, contracting provisions, and regional influences in North America and Europe. Given the multitude of contract forms and the involvement of specialty contractors (and the legal responsibilities thereof) the concept of a team approach emerged among all comparisons, which would allow for more innovations, reduction of risk and a better methodology of risk sharing among all parties. Hertlein, Verbeek, Fassett and Arnold explore the current state of construction technologies and how some of those techniques are implemented in the quality management (QM) and quality assurance (QA) of drilled shafts. Recent technological developments including their integration in Europe and North America are discussed. In addition a review of QA approaches on both continents is provided along with code standards and guidance documents for each. Selected methodologies within the non-destructive and destructive range are explored and described in further detail. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 10, Issue 2, December 2016. Non-Members can Click Here to subscribe.

The papers in this publication present the state of practice related to design, construction, risk management and lessons learned from major dam and levee rehabilitation projects in North America and around the world. The papers were peer-reviewed before being selected and pertain to the session topics selected by the Conference Organizing Committee for the Seepage Control & Remediation Track for the 2016 Conference. Those topics are Solving Underground Problems in Water Infrastructure Systems; Case Histories on Risk Management and Long Term Performance; Seepage Barrier Material Design and Placement/Installation; Data Management for Construction Optimization and Final Product Acceptance; Subsurface Characterization Practices & Selection and Design of Cutoff Technologies; Cutoffs for Dewatering Applications and Temporary Cofferdams; Verification Methods and Acceptance Criteria for Seepage Barriers; Current Research and Future Research Needs.
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This document was developed by the DFI Soil Mixing Committee. The Guidelines provide an overview of the state of practice of Deep Mixing Methods (DMM) in North America as well as a guide specification for deep mixing work. This document focuses on constructability and feasibility considerations for deep mixing and addresses the following applications: Earth retention; Liquefaction mitigation; Groundwater seepage control and containment isolation; Bearing capacity improvement; Deep foundations; Mass stabilization and contamination containment; Embankment, levee and dam strengthening, and stabilization; and Casing replacement. It is intended that this document provide a basic introduction to wet and dry DMM to enhance its adoption and application in North America. Purchase of this publication includes a PDF of the full guide and an editable Word Document of the Guide Specification.contents list

This document is an update to Deep Foundations Institute (DFI) Augered Cast‐in‐Place (ACIP) Pile Committees ACIP Pile Manual (Model Specification) (2003 version). The Guideline Specification and Commentary content have been updated to address current trends in ACIP Pile installation and quality control, the use of increased ACIP pile diameters and lengths to provide significantly higher load carrying capacities, and the challenges associated with the use of grout and reinforcement necessary to sustain such higher loading. The order of the Guideline Specification has been revised to more closely match the format typically utilized in project specifications. This document is intended to provide the industry with practical guidance in the preparation of a project‐specific specification.

The primary purpose of the Best Practice Guide to Tremie Concrete for Deep Foundations is to present design considerations (concrete rheology, mix design, reinforcement detailing, concrete cover, etc.) and best practices for tremie concrete placement for drilled shafts and diaphragm walls that promote construction of high quality elements. In addition, the guide proposes changes to the methods used commonly to specify concrete mixes and the procedures to test them. It highlights important considerations to minimize risk related to concrete workmanship and quality, and potential conflicts between specialty contractor, designer and supplier.
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The last 25 years have seen exponential growth in the use of helical piles and tiebacks. Helical piles and tiebacks are now considered a standard of practice in the deep foundation industry. With the dramatic growth of this technology and the proliferation of available technical information, a synthesis paper on the current state of the practice was considered a valuable addition to the literature as a way to quantify and summarize the current state-of-practice. Based on the increased interest and global applications of helical foundations, in 2013 the Helical Piles and Tiebacks Committee (HPTC) commissioned a state-of-practice survey of current practices in the use, design and installation of helical piles and tiebacks. The major goals of the survey were to understand the current status of applications of helical piles and tiebacks, their design and construction, quantify perceived needs and to identify future trends. The results for the present survey are very encouraging and have clearly demonstrated that there is a cadre of engineers and manufacturers dedicated to continued improvement and understanding of helical foundation systems. Continued work and education of design engineers, architects, government agencies and owners will ensure continued success and progress. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 9, Issue 1, April 2015. Non-Members can Click Here to subscribe

This document was developed by the Helical Piles and Tiebacks Committee to provide practical guidance for the specification of helical pile foundations. Model performance specification language is provided for the design, construction and testing of helical piles for compression, tension and/or lateral loading applications. Typical helical pile foundation applications include new foundation construction, foundation repair and existing foundation augmentation.
Order here for PDF version or purchase an editable Word document by contacting staff@dfi.org or call 973-423-4030. The cost for MSWord version is $30 for DFI members and $50 for nonmembers.
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This report describes a research project for evaluating the applicability of the widely accepted 80 percent criterion for elongation of ground anchors to anchors with unbonded lengths exceeding 100 feet. This issue is driven by several recent projects involving ground anchors for landslide stabilization in which a significant percentage of the anchors did not meet the criterion that requires measured elongation during proof load testing of at least 80 percent of the theoretical elastic elongation. The projects involved anchor unbonded lengths in the range of 85 to 220 feet, which is outside the range traditionally used in practice although anchors of this length are being used more frequently for landslide stabilization. The principal objective of this research is to address whether the widely accepted criterion of 80- percent elongation is applicable for such applications, and whether other factors affect the ability of anchors to meet the criterion.

This document was developed by the Helical Piles and Tiebacks Committee to provide practical guidance for the specification of helical anchors. Model performance specification language is provided for the design, construction and testing of helical anchorages for tension applications. Typical tension applications include earth retention and shoring, transmission tower guy tiedowns, and buoyancy/uplift protection.
Order here for PDF version or purchase an editable Word document by contacting staff@dfi.org or call 973-423-4030. The cost for MSWord version is $30 for DFI members and $50 for nonmembers.
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The provided method specification for wick drains is intended as a guide. The Engineer should review it carefully and make the necessary adjustments to account for the size, complexity, conditions and specific requirements of the project. This work consists of furnishing all necessary labor, equipment, and materials to install prefabricated vertical (wick) drains in the ground in accordance with the Plans and as specified herein.
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papers included in these proceedings following a thorough peer review process based on technical merit, content, applicability and interest to the engineering and construction professions in order to contribute to the continued growth and improvement of the deep foundations industry. They were submitted under the following topics: LRFD, Foundations in Power/Telecommunication and Seismic Engineering Design, Deep Foundation Design, Construction, Performance and Behavior in Special Soil/Rock Conditions, Design and Construction State-of-the-Art Practices for Deep Foundations and Retaining Structures, Lessons Learned and Solutions for Challenging Projects and Deep Foundation Design Optimization and Value Engineering.
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This report presents the results of a synthesis on the design and analysis of ground improvement for liquefaction mitigation. The synthesis included an industry survey concerning the practice of ground improvement for liquefaction mitigation. Participation in the survey was solicited by advertisements in several trade magazines and by e-mail for the DFI membership. The survey participants numbered 150. Their professional roles include consulting engineers, specialty contractors, design engineers, government engineers, and academicians. They represent a variety of geographical areas including North/Central/South America, United Kingdom, Middle East, Caribbean, Hawaii, Japan, India, Egypt, France, Australia and New Zealand. Upon completion of the survey, several professionals in the field of liquefaction and ground improvement were interviewed for them to elaborate on the survey results. The interviews are included in the Appendix of this report. Financial report for the project was provided by DFI and Dan Brown and Associates PC. DFI Members can access the article by logging into myDFI and choosing view Journal Issues for the DFI Journal Vol 7, Issue 1, August 2013. Non-Members can Click Here to subscribe

Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil
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$300

$305

#CPF-2012-LAND-1

Analysis of Landslides and Slopes Stabilized Using One Row of PilesDFI Deep Foundations for Landslides and Slope Stabilization Committee, Hamed Ardalan and Dr. Mohamed Ashour, The University of Alabama in Huntsville
PDF, 128 pages, illustrated

The presented research work had a primary goal of developing a reliable and representative design method that accounts for the effect of the soil and pile properties and pile spacing on the performance of pile-stabilized slopes based on the soil-pile-interaction. The proposed design approach was also compiled into a computer program for the analysis of pile-stabilized slopes. The strain wedge (SW) model technique developed by Norris (1986), Ashour et al. (1998), and Ashour and Ardalan (2012-1) for laterally loaded piles (long, intermediate, and short piles) based on the soil-structure interaction was modified to analyze the behavior of piles used to improve slope stability. The computer software (PSSLOPE-M), which was written in Visual Basic and FORTRAN, was developed to implement the presented technique for pile-stabilized slopes, including the slope stability analysis (with no piles) using the Modified Bishop Method. The computer software is available from the researcher, Dr. Mohamed Ashour at ashouruah@gmail.com. Click Here to download copy of project reportcontents list

FindAPile.com was created with the purpose of developing a catalogue that documents studies of pile foundations under lateral loading to assist geotechnical engineers, researchers and contractors in their design selection, numerical modeling, literature reviews, research assignments and construction selections. Pile foundations, in particular drilled shafts, are one of the most common foundation systems used in engineering practice. Their versatility in application (off-shore, ports, bridges, buildings) and its resourcefulness in terms of engineering analysis and design (vertical and lateral loading capacities) make it a foundation preference in the United States. The direct use of large scale pile test results has become a design practice (performance based design) to create safer and more economical foundation systems. Large scale pile tests also provide a more realistic understanding of foundation behavior in specific boundary conditions, soil types and enable the engineer to conduct a much more advanced design approach. The mission of the research team is to create a resource for practicing engineers to help guide and advance the pile analyses through an extensive literature review and development of an online database of previous large scale pile experiments. Click Here to go to Find A Pile.com

39 papers are included in these proceedings following a thorough peer review process based on technical merit, content, applicability and interest to the engineering and construction professions. They were submitted under the following session topics: The Installation and Performance of Drilled, Driven and Other Foundation Elements, Alternative Deep Foundation Solutions Offered by Ground Improvement Techniques, Modeling  Static Analysis, Dynamic/Earthquake Analysis, Foundations of Marine Structures, In-Situ Testing of Deep Foundations and Current Issues in the Deep Foundations Industry.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features. This volume's second edition is a Themed Issue on Testing.contents list

This guideline provides practical guidance for the interpretation of nondestructive testing (NDT) of the integrity of augered cast-in-place (ACIP) and drilled displacement (DD) piles. Every NDT method has specific associated capabilities and limitations, and ACIP and DD piles have unique properties that must be considered when using a specific NDT method for a project. For successful interpretation, it is essential that the test results not be utilized alone, but in conjunction with all the available information on pile installation, as well as consideration of the subsurface conditions, past experiences and sound engineering judgment. This guideline supplements DFIs two primary publications on ACIP piles: Augered Cast-in-Place Pile Manual (2016) and the Inspectors Guide for Augered Cast-in-Place Piles (2010).
This guideline was developed to provide 1) more detailed explanations of the various test methods available, 2) guidance on interpretation of the results, and 3) some typical examples of the data and interpretation.
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This guidance document is intended to assist geotechnical engineers, pile designers, and contractors in analysis, design, and testing of piles and drilled shafts for lateral loads. Although analysis of lateral response of piles and shafts is routinely performed, there is no single guidance document and/or standard for design and testing. Several different analytical methods are available for the analysis and the resulting design can result in significantly different responses which can create confusion. Over the years, analysis of response of piles due to lateral loads evolved from closed-form solutions to py methods to strain wedge to finite element/finite difference modeling. This is especially true for analyzing and designing piles in potentially liquefiable soils with lateral spread issues under seismic conditions. This document discusses the background of different analytical and testing procedures and presents the recommended methods for analysis, design and testing of piles for lateral loads.
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59 peer-reviewed papers are published in these proceedings and were submitted based on the following session topics: Applying Novel Alternatives-- New and Old; 2) Unique Solutions for Construction in Constrained Urban Areas; 3) Advancements in Deep Foundation Design and Construction; and 4) Case Histories in Infrastructure Applications.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features. This volume's second edition is a Themed Issue on Testing.contents list

48 peer-reviewed papers which were presented at the conference either verbally or via posters are included. The papers fall under the following categories: Deep Foundations in general, Ground Improvement, Earth Retention, Infrastructure, Innovative Design, Sustainable Design, Modelling, and Case Histories on Projects in the Los Angeles area.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features.
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This publication is a guide to the inspection of Augered Cast-In-Place Piles (ACIP) and a companion document to the DFI Augered Cast-In-Place Piles Manual. The manual, updated from the original version published in 1994, summarizes the requirements expected of all parties concerned in the successful installation of these piles and now includes information on Automated Monitoring Equipment (AME) and Non-Destructive Testing (NDT). Step by step installation procedures, construction equipment and inspection tools are discussed along with the common potential problems. Sample inspection forms are also provided. The manual provides guidelines for observing and documenting the installation of ACIP piles constructed using a hollow stem continuous flight auger and may also serve as a guide for the training of inspection personnel. This document is not intended to cover all project related issues; however, the intent is to outline the expectations for personnel involved in ACIP Pile installation and monitoring. These expectations along with a thorough subsurface exploration program, a quality specification, an experienced contractor and knowledgeable inspector can lead to a successful ACIP Pile project.
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This guide, a result of the work of the Tiebacks and Soil Nailing Committee of the Deep Foundations Institute (DFI) with review by the Anchored Earth Retention Committee of the ADSC: The International Association of Foundation Drilling and the Technical Activities Committee of DFI, is intended for general use primarily in the private market, since the public sector is typically served by the Federal Highway Administration design and construction guidelines. The model spec encompasses all designs, materials, products, accessories, installation techniques and testing procedures required for the installation of soil nail excavation support or earth retention systems. Its purpose is to assist in the development of project specifications for soil nail earth excavation support and earth retention systems and is based on generally accepted industry standards but may require modification by the specification writer to accommodate unusual or unforeseen site and subsurface conditions and the particular circumstances of the project. In this regard, the Committee hopes that the Guide will be of use where other design and construction guidelines do not exist or in the development of building code provisions for Soil Nailing in the various Building Codes nationwide.
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26 Papers which were presented at the conference are included. The presentations fell under the four conference session categories: Midwest Deep Foundation Design Topics; Construction Methods/Design-Build Construction; Performance Monitoring, Condition Assessment and Load Testing and Special Applications - Earth Retention, Slope Stabilization, Ground
Improvement. Additionally abstracts of 18 supplemental papers are printed in the book and PDFs of the full papers are included, in color, on the optional CD Rom.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features.
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27 Papers which were presented at the conference are included. The presentations fell under the four conference sessions categories: Groundwater Control and Excavation Support; Construction in Urban Environments; Novel design and Construction Methods and Installation and Testing of Deep Foundations. Also included is the John Mitchell Lecture by David Sherwood. Additionally abstracts of 47 supplemental papers are printed in the book and PDFs of the full papers are included, in color, on the optional CD Rom.
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Practice-oriented, high quality papers related to the broad area of geotechnical projects and deep foundations engineering. Topics of interest include all systems designed and constructed for the support of heavy structures and excavations, but not limited to, different piling systems, drilled shafts, ground modification geosystems, soil nailing and anchors. New and emerging topics related to innovative construction technologies, marine foundations, innovative retaining systems, cutoff wall systems, and seismic retrofit are also included. Case histories, state of the practice reviews, and innovative applications are presented for the practitioner perspective. Opinion papers/Forums; technical notes; discussions, response to discussions, and book reviews are also among the Journal's common features.
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51 papers are included of which 30 were presented at the conference. The presentations fell under the four conference sessions categories: Quality of Deep Foundations through Testing; Slope Retention and Ground Improvements; Innovative Analysis, Modeling and Design; and Specialty Foundations and Applications. 21 supplemental papers are also included in the volume. Proceedings also available on CD in Adobe PDF format which includes color illustrations either in combination with the book or sold separately.
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Includes 8 papers presented at the seminar on May 11, 2007. Titles are: Construction of the Main Tower Pier Caissons for the Greenville Bridge in Mississippi; Caisson Foundations for Mississippi River Bridges in the New Orleans Area; Construction of Large Drilled Shafts - The 2nd Annual Mike O'Neill Lecture; Quality Control of Production Pile Installations for US-90 Replacement Bridge over St. Louis Bay; Drilled Shaft Foundations for the Float-In Dam on the Monongahela River at Braddock, PA; Design of the Lift-In Dam at Olmsted on the Ohio River; Construction of Cooling Water Intake Shafts for the Elm Road Generating Station - Oak Creek Wisconsin; and Geophysical Methods for Site Characterization for Marine Foundations.
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This manual is the reference text used for the FHWA NHI course Nos. 130221 Driven Pile Foundations  Design and Construction and 130222 Driven Pile Foundations  Construction Monitoring and reflects the current practice for pile foundations. The manual is also intended to serve as the FHWAs primary reference of recommended practice for driven pile foundations. The Design and Construction of Driven Pile Foundations manual is directed to geotechnical, structural, and construction engineers involved in the design and construction of pile supported structures. This manual is intended to serve as a practical reference of driven pile foundations. Volume I of the manual addresses design aspects including subsurface exploration, laboratory testing, static analyses, as well as specifications and foundation report preparation. Volume II covers construction aspects including dynamic formulas, wave equation analysis, dynamic pile testing, static load testing, Statnamic testing, Osterberg cell testing, as well as pile driving equipment, pile driving accessories, and pile installation inspection. Step by step procedures are included to facilitate use of most analysis procedures.
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51 papers are included of which 25 were presented at the conference. 23 were presented under the categories of the four conference sessions: Washington Underground-Past & Present; Innovations & Advancements in Deep Foundations Construction; Quality Control & Adaptive Re-Use of Deep Foundations; and Case Histories-Advancements in the State of the Practice and the other two were written and presented by the 2006 Student Paper Competition award winner, James Schneider of University of Western Australia and 2006 Young Professor Paper Competition award winner Thomas J. Weaver of University of Idaho-Moscow. 26 supplemental papers are also included in the volume. For a contents listing of paper titles contact DFI headquarters at dfihq@dfi.org. Proceedings also available on CD in Adobe PDF format which includes color illustrations either in combination with the book or sold separately.
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Includes 99 papers from the session topics as follows: General Reports, Deep Excavations, Foundation Techniques: Design, Foundations techniques: Current Practice and New Technology, Managing Geotechnical Risk, Environmental Issues, Safety & Working Conditions, Monitoring & Testing, and North-South Line Project Case Studies. Also included is the John Mitchell Lecture which was presented and authored by Harry Poulos.
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This book is a narrative autobiography, written in novel form, with fictitious names. All the events described are true but they have been arranged geographically instead of chronologically. While most of the events actually occurred with the writer being present, a few have been based on first-hand descriptions told to the writer a few days later. The philosophical discussions interspersed through the several chapters have been worded as a fictitious dialogue so as to enable the discussions in the form of questioning rather than dogmatic answers. Hopefully the reader will find answers relevant to his own live and own career.
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46 papers of which 26 were presented at the conference in the following four sessions: Driven Piles & Earth Retention; Drilled Shafts & Ground Improvement; Bored Piles & Special Topics; and Earth Retention & Driven Piles. In addition 17 supplemental papers are included in the volume as well as the papers by the DFI Young Professor Paper Winner, DFI Student Paper Competition winner and first runner-up.
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12 Papers titled as follows: Marine Foundations of Bridges in the Northeastern USA; Design and Construction of the Sutong Bridge Foundations; Route 49 (Penns Neck Bridge) Over Salem River; Design and Construction of the Rion Antirion Bridge Foundations; Large Diameter Shafts  Youghiogheny Reservoir Bridge; Design of the Marine Foundation for the Skyway Project of the San Francisco Oakland Bay Bridge; Installation of Marine Pile Foundations at the Skyway Project for the San Francisco Oakland Bay Bridge; Design of Cooper River Bridge Foundations; Foundations for OffShore Wind Energy Converters  A Review of Some Current Scandinavian Development Projects; Construction Techniques Used to Build the Drilled Shafts for the Victory Bridge; Woodrow Wison Bridge Cofferdams
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This guide to Non-Destructive Testing (NDT) and Evaluation of Drilled Shafts porvides a general introduction to the various current NDT testing methods, their fundamental operating principles, prime applications, advantages and limitations. It is intended for use by owners, design engineers, inspectors and contractors involved with drilled shaft construction. Students of foundation engineering will also find it a useful primer for the business. Conventional and new load testing methods are also described in the manual although they are not usually considered "non-destructive" tests. They were included since many load tests are performed on production drilled shafts in an effort to complete the comprehensive coverage of evaluation of drilled shafts in this manual. The six main sections are: Introduction; Application of Non-Destructive Testing to Drilled Shafts; Inspection and Observation Methods; Integrity Testing Methods; Load Testing Methods; and Corroboration and Remediation Options
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This guide to current industry practice and recommended practice guidelines for structural slurry walls is a composite of the opinions of practicing engineers, construction experts and the DFI Slurry Wall Committee. This guide is intended to provide information for the design and construction of structural slurry walls in the United States and highlights the major considerations in selecting structural slurry walls for temporary and permanent use in foundation construction. Included in the manual are: Nomenclature used in slurry wall construction; Related terms and construction methods; Definition of a slurry wall and other standard teminology; A history of slurry wall construction; Industry practice standards; DFI practice guidelines; 20-page list of slurry wall projects constructed in North America.
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28 papers of which 22 were presented at the conference in the following four sessions: Drilled Shafts & Caissons - Emerging Design and Construction Practice; Drilled Shafts & Diven Piles; Innovations in Micropiles & Helical Piles; and Ground Improvement & Ground Support. In addition 4 supplemental papers are included in the volume. Also includes paper by DFI Student Paper Competition winner and first runner-up.
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This proceedings was originally published by the FHWA in 2004 for the 83rd Annual Transportation Research Board Meeting in Washington, DC on January 13, 2004 in Rememberance of Dr. Michael W. O'Neill and is now being offered as a reprint by DFI. The book is comprised of 8 Papers Including: The Development of ACIP Piling Systems and Equipment and the new B-Tronic Quality Control System; Augered Cast-in-Place Pile and Driven Pre-stressed Concrete Pile Field Performance Comparison; Automated Inspection Control of Augercast Piles; The Development and Testing of ScrewSol Rotary Displacement Pile; Economy, Benefits and Limitations of NDT for Augered-Cast-in-Place Piles; New Concept for Monitoring the CFA Casting Phase; A Study of Design Procedures for Augered Cast-in-Place Piles in Clay and Monitoring of Drilling Resistance for Augered Cast-in-Place Piles
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9 Papers Including: Local Use and Design of Augered, Cast-in-Place Piles in the Southern Piedmont Province; Installation of Augered Cast-in-Place Piles; Augered Cast-in-Place Pile Inspector's Video Acknowledgements; Quality Control of Augered Cast-in-Place (ACIP) and Drilled Displacement (DD) Piles; Installation of Augerpiles in Low Headroom and Restricted Access Conditions; Construction of a Continuous Flight Auger Secant Wall: Chattahoochee Water Treatment Plant, Atlanta, Georgia; A History of the Use of ACIP Piles for Major Projects in Atlanta; Innovative Use of ACIP Piles and Geogrid to Support Kroger Superstore; Fundamental Issues of Displacement Auger Piling: The European Perspective.
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32 papers of which 22 were presented at the conference in the following four sessions: Deep Foundation Systems within Florida; Drilled Shafts & Ground Improvement - State of the Practice; Augered Cast-in-Place Piles & Micropiles - Case Histories; Helical Foundations & Driven Piles - Case Histories. In addition 10 supplemental papers are included in the volume. Also includes paper by DFI Student Paper Competition winner and first runner-up.
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127 papers from the following session subjects: Keynote Lectures, Jet Grouting, Deep Mixing, Grouting for Enhancement for Piles and Piers, Grouting for Micropiles and Anchors, Compensation Grouting, Grouting for Water Retaining Embankments, Grouting in Karst, Compaction Grouting and Limited Mobility Grouting, Grouting in Rock and Mining, Grouting Mixtures and Materials, Groutability and Grout Evaluation, Grouted Cut-offs, Modeling and Verification and Grouting for Tunnels.DFI is currently out of stock on this item.Click here to order from the ASCE publications department.contents list

The volume covers the discussion sessions that followed each of the 32 technical sessions of the Third International Conference on Grouting & Ground Treatment held on February 10-12, 2003. It was produced by transcribing audio tapes of each technical session, or when available, from written questions and answers. Individuals were allowed to edit their responses to provide greater clarity and thoroughness. IN some instances the written discussions elicited follow-up questions, with the discussions carrying on for several months. Also included in the volume is a peer-reviewed paper presented by Friedrich-Karl Ewert at the conference which was not included in the original conference proceedings.

89 papers from the following 9 session subject topics: Information Technology & Monitoring; Case Histories, Part 1, Dynamics in Foundation including Earthquake Engineering, Piled-Raft, Eurocode 7 & 8 - Execution Euronorms; Case Histories, Part 2; New Trends in Design in Relation with Installation Procedure; Contractual Aspects in Foundations, Soil Risk, Benchmarking; New Trends in Design - Load Tests Results. Also included is three complementary papers as follows: "Piling the Gateway to Europe", "Recovery Efforts at the World Trade Center Bathtub", and "Construction of a Pre-founded Anchored Wall, Monitoring of Execution Based on the Eurocode 7 Observation Method, and Taking Account of the Transmission of Seismic Forces in the Retaining Structures towards the Building's Structure".
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This guide to drafting a specification for high capacity drilled and grouted micropiles for structural support encompasses the furnishing of all designs, materials, products, accessories, tools, equipment, services, transportation, labor and supervision, and installation techniques required for testing and installing of micropiles and pile-top attachments. This guide is intended for use by Engineers for writing project specific specifications. The document was prepared by the Deep Foundations Institute (DFI) Micropile Committee from 1996 to 2001 and endorsed by the ADSC-IAFD Micropile Committee in October 2001. The Hollow Bar Supplement was developed by the joint ADSC/DFI Micropile Committee in 2002.
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Proceedings of the 25th Annual Members' Conference and Eighth International Conference and Exposition, 2000, New York NYDFI 2000 International Conference - New York City Organizing Committee
Soft cover, 637 pgs., illustrated, 8"x 11½"

54 papers from the following 4 session subject topics: How Geology has Driven Foundation Practice Worldwide, Industry Trends and Up and Coming Innovations, Foundation Techniques in the Urban Environment, and Notable International Projects. . . . Call DFI HQ for a complete list of titles in these proceedings.
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A model proposal for piledriving contractors to use when submitting a bid to a general contractor or owner. Includes language describing the scope of work included in the price such as access, work hours, utility interference, insurance, and payment provisions. Also includes a checklist of inclusions and exclusions and a supplemental form that can be used if you anticipate a problem with hazardous waste. An MS Word File for use as a template for your own proposal is provided as well as a PDF copy of the model proposal.

Describes the installation of augered cast-in-place piles, including the various pieces of equipment and materials used in construction. Contains animation of drilling though a layered subsurface, grouting of the pile and installation of reinforcing steel. This video is a companion to the Augered Cast-In-Place Piles Manual and is intended for contractors, owners, design engineering firms and geotechnical consultants.

74 papers from the following 5 session subject topics: Quality Assurance & Testing; Codes and Standards; Environmental Issues; Equipment; Case Studies. Also included is the John Mitchell Lecture titled "The Image of the Civil Engineer in Society from an Ethical and Philosophical Aspect" written and presented by Professor Heinz Brandl, Dr. Techn., Dipl-Ing., technical University Vienna.
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Includes Specifications, Driving Methods and Size & Characteristic Charts for the following different types of Sheet Piling: Aluminum, Concrete, Plastic, Cold-Formed and Hot-Rolled Steel, Treated Wood, and Miscellaneous Types of Sheet Piling as well as discontinued sections. Also included is a summary of the sections categorized by Section Modulus. All measurements are listed in both English and International System (SI) Units. Available with CD-Rom of MS Word for Windows files.
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A pocket-sized handbook for inspectors and others concerned with the construction of driven pile foundations. A companion piece to A Pile Inspector's Guide to Hammers. Completely rewritten and updated version of the 1979 Manual. Provides Information on soil investigation, the various pile types, pile driving by impact methods, pile tests, dynamic pile testing and analysis, static load testing, pile hammers and pile driving machinery and ancillary equipment along with some suggested inspection forms. The manual is written from the perspective of the pile inspector and presents advice as to the inspector's role and responsibilities in the pile installation and quality assurance processes. Invaluable in the training of inexperienced Inspectors and useful as a reference guide to the experienced inspector or crew member.
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8 Papers including: Seismic Renovation: South Carolina State House  Design & Construction of the Foundation for Underwater World at Pier 39, San Francisco  A Bracing System Subjected to Dynamic Loading  Modeling & Analysis of the San Francisco/Oakland Bay Bridge: Timber Piled & Retrofitted Foundations  Retrofitting the San Francisco Bay Bridge Approach Ramp with Tubex G.I. Piles  Determination of Pile Length Using electromagnetic Methods  A New Building Inflicted by the Kobe Earthquake of January 17, 1995 & the Measures Taken to Restore & Strengthen the Foundation-Building System  Micropiles for Seismic Stabilization of West Emerson Street Viaduct.
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An informative reference guide for inspectors and others concerned with the construction of driven pile foundations, and a companion piece to the Inspector's Manual for Pile Foundations. This reference work provides discussions on the pile hammer as a measuring tool, the transfer and utilization of hammer energy, pile driving inspection criteria, the inspector's responsibilities, and basic descriptions for the operating cycles of the various types of hammers (including newer hydraulic impact hammers) in common use. Check lists to confirm proper operation in the field and a glossary of related terms are also included.
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Comparative Pile Tests in Alluvial Sand  The Effect of Overburden on Pile Capacity in a Calcareous Marl  Concrete Piles Driven in Coral Sand  Underpinning using Long Minipiles in Compressive Soils  A New Method of Analysis for the Statnamic Load Testing Method  A New Method for Analysis of Pile Displacement in Soil with Respect to Time  Deep Slurry Wall Construction in Hong Kong  Anchored Excavation Support Using SMW  High Capacity Soil Anchors in the Boston Clays  Some aspects of Tie-Back Design and Construction in the UK  Design Considerations for Underground Subway Stations.
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CALTRANS, in association with FHWA and private business, conducted axial load tests of various pile types in deep soft soils. The tests investigated two conditions: (1) adhesion (I.e., piles installed only in deep bay mud) and (2) adhesion plus bearing in non-cohesive material. The proceedings contain the results of installation and testing of the CALTRANS standard piles and proprietary piles, and CALTRANS seismic upgrade criteria and geotechnical investigation requirements. HARD COPY OUT OF PRINT - ONLY AVAILABLE AS PDF ON CD-ROM or as DOWNLOAD ON ONEMINE.ORG.contents list

Printed in China by the China Architecture and Building Press. Limited Edition. A Chinese edition, written in English, for the '91 Stresa-4th International Conference preprint book. 35 papers cover the same subject topics as the above 4th International Conference Proceedings. Case histories are included. Information about the use of stone columns, large caissons, testing and quality control procedures is given. The use of mechanically biased, vibratory pile drivers is discussed. "Theory and Practice in Deep Foundations" sums up problems and developments in piles and deep foundations in recent years in China.
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Two volume hardcover set containing over 100 papers from the conference sessions. The papers are categorized into the following subject areas: Recent Developments in Deep Foundations with Soil Excavation; Recent Developments in Deep Foundations without Soil Excavation; Recent Developments in Pile Design; Installation Equipment; Pile Testing. A special collection dealing with "EUROCODE 7 and Standardization" prefaces the book.
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This book was first published in 1991, and features seven papers first written by soil nail specialists for the DFI Conference in Atlanta in the fall of 1988. These papers cover the details of design, construction and performance, with particular reference to a number of case histories. Titles include: Insitu Ground Reinforcement Techniques by Peter J. Nicholson; American Developments in the Use of Small Diameter Inserts as Piles and Insitu Reinforcement by Dr. Donald A. Bruce; Soil Nailing a Nashville Fault Zone by John R. Wolosick P.E.; Advanced Soil Nailing Design-Improved Reliability and Predictability of Wall Performance by Reinhard Gnilsen, F. David Shiver and Wolfgang Unterberger; Nailed-Soil Retaining Structures: Design and Practice by Ilan Juran; Soil Nailing Innovative Applications by Schnabel Foundation Company; and Soil Nailing in Varied Geological Formations by David E. Ferworn.
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Design of piles and pile groups for capacity, settlement, and drag loads due to negative skin friction in total or effective design (alpha or beta method). The influence of soil set-up and residual loads is discussed, methods of settlement analysis are presented and views are presented on allowable load factors of safety. Several examples are included.
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Augments the Drilled Shaft Inspector's Manual by joint committees of DFI and ADSC. The manual is included. Primarily targeted to geotechnical consulting firms and their inspectors, the presentation can help contractors' drilling personnel better understand the role of the drilled shaft inspector on the jobsite.

6 papers concerning the design and construction of the replacement structure to the 880 Cypress Viaduct destroyed in the 1989 Loma Prieta earthquake. The replacement structure was designed using the state-of-the-art earthquake-resistant design employing large diameter driven steel pipe piles.
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An official text for the DFI "Design, Analysis and Testing of Piles and Drilled Shafts" short course. An overview of the current methods of dynamic measurement and analysis of impact-driven pile during installation and restroke for assessing long-term performance. Discusses wave equation analysis using the GRLWEAP computer program.
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An official text for the DFI "Design, Analysis and Testing of Piles and Drilled Shafts" short course. Testing arrangement, execution procedures and reporting results of the static loading test are presented. Safety considerations are outlined. Information is given on: Interpretation of failure load, factor of safety and acceptance criteria. Instrumentation of the pile, determination of "elastic" modulus, interpretation and evaluation of "telltale" data and influence of residual compression are covered.
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Technical master construction specifications developed for Public Works Canada, Marine Division. The specs were produced with the intent of reducing the incidence of disputed claims and litigation in the piling contracts. The specs address generally applicable aspects, such as how to specify hammers and hammer performance, equipment adequacy of equipment details, obstructions, inspection, use of the Pile Driving Analyzer, and performance of static load tests, as well as aspects pertaining to the particular pile types, pipe piles, H-piles, concrete piles, and others.
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A reference-of-record for drilled shaft foundation project planning, engineering, construction, and quality assurance personnel. The manual is an updated to the original DFI/ADSC collaborative effort of 1989.
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Includes five papers on Drilled Shafts , a paper on design and installation of driven piles, two papers on load test procedures and evaluation, and two papers: "The Advantages of Arbitration," and "You Are Safer in Litigation," concerning the legal aspects of deep foundations construction.
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5 papers including: A review of Typical Foundations Used in the City of Cleveland  Interlocking H-Sections for Cofferdams Resist High Pressure  Differing site Conditions  A Need to Reevaluate Attitudes in Engineering and Construction  Tanana River Bulkhead Expansion, Flexibility in Construction; Key to Arctic Dock Construction.

6 papers including: History and Present Status of piles and their Installation in the US  History of Timber Piles and Preservation Techniques  Dynamically Cast-In-Place Piles  Foundations for the Sohio Corporate Headquarters  Wave Equation Analysis and Dynamic Monitoring  Effective Dewatering is more than a Pump in the Hole.
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The method defines a standard procedure for compression testing of cushion materials used between pile hammers and a pile. The results are load deflection characteristics which provide input data for wave equation analysis of pile driving.
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A basic introduction to handling, installing and testing load bearing piles: timber, H-beam, pipe, shell, Monotube and pre-cast concrete. Details of setting up and conducting both reaction-beam and dead-load piles tests are covered. The program provides insight into problems confronted and the methods used in mobilizing a major pile testing program.

The EFFC and DFI have created a tool that will calculate the CO2 emissions of foundation and geotechnical works. It is designed to allow contractors and commissioning organizations alike to assess the carbon footprint of their projects. The Foundation CO2 Calculator has been developed using verifiable, standardized data to enable accurate benchmarking of competing project proposals. Prior to its development there existed no single standardized tool for calculating CO2 emissions for these types of ground works. The tool also allows contractors to compare and contrast different technical approaches within the same project and see what the CO2 emissions will be. Furthermore it can be used throughout a project's development to compare how it performed against expectations. Click Here to Download the Tool

This publication contains peer reviewed technical papers pertaining to deep mixing with regard to materials, equipment, system design, and project delivery mechanisms, as well as case histories with lessons learned. A call for abstracts was issued, and more than 170 were received. Each submitted paper received at least two peer reviews. Ultimately, 107 papers were accepted for inclusion in the conference proceedings. The papers are organized according to the topical areas selected by the corresponding author, and alphabetically by the corresponding author's last name within each topical area. We recognize that most papers address a range of topics.
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This Geotechnical Special Publication (GSP) Contains selected papers from the International Foundations Congress and Equipment Expo (IFCEE15) held in San Antonio, Texas on March 17-21, 2015 sponsored by ASCE's Geo-Institute, the Deep Foundations Institute (DFI), the International Association of Foundation Drilling (ADSC) and the Pile Driving Contractors Association (PDCA). This mega event was the first time since 2009 that leading geotechnical organizations joined together to have one joint conference. IFCEE15 provided an international forum to discuss technological advances, case histories, and present challenges related to geotechnical and foundation engineering on the topics of Analysis and Design, Lessons Learned, Design for Extreme Events, Earth Retention and Stabilization, Energy Foundations (Wind, Transmission and Geothermal), Geocharacterization, Risk and Reliability, Geotechnical Education, Ground Improvement, Grouting, Quality, Testing, Instrumentation, Evaluation and Sustainability. The congress was heavily attended by a wide range of geo-professionals including engineers, contractors, academicians, equipment manufacturers, geo-technologists, researchers, and suppliers of tools and services. An international call for papers and a rigorous peer review process yielded 265 accepted technical papers that were presented in 38 sessions, in addition to invited keynote presentations.
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DFI collaborated with CRSI to update the Design Guide for Pile Caps. This design guide has been developed to provide the practicing engineer with a detailed overview of pile cap design, detailing and analysis methodologies that represent the current state of practice in the industry. The guide contains comprehensive technical content and practical design examples utilizing approximately 30 different, yet commonly used, pile cap configurations. DFI provided funding to the project through the DFI Committee Project Fund. Members of the DFI Driven Pile and Micropile Committees reviewed and contributed to the study. Click here to order from the CRSI webstore.contents list